Lexus ES: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
- *: Use the Techstream.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
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| 2. | CUSTOMER PROBLEM ANALYSIS |
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| 3. | INSPECT BATTERY VOLTAGE |
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
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| 4. | CONNECT TECHSTREAM TO DLC3* |
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| 5. | CHECK AND CLEAR DTCS AND FREEZE FRAME DATA* |
(a) Refer to DTC Check / Clear.
Click here .gif)
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| 6. | VISUAL INSPECTION |
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| 7. | SELECT CHECK MODE DIAGNOSIS* |
(a) Refer to Check Mode Procedure.
Click here
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| 8. | PROBLEM SYMPTOM CONFIRMATION |
(a) Refer to Road Test.
Click here
| Result | Proceed to |
|---|---|
| Symptom does not occur | A |
| Symptom occurs | B |
| B | .gif) | GO TO STEP 10 |
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| 9. | SYMPTOM SIMULATION |
(a) Refer to Symptom Simulation.
Click here
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| 10. | DTC CHECK* |
(a) Refer to DTC Check / Clear.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
| B | | GO TO STEP 20 |
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| 11. | BASIC INSPECTION |
(a) Refer to Park/Neutral Position Switch.
Click here
(b) Refer to Transmission Control Cable.
Click here
| NG | | GO TO STEP 18 |
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| 12. | MECHANICAL SYSTEM TESTS |
(a) Refer to Mechanical System Tests.
Click here
| NG | | GO TO STEP 17 |
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| 13. | HYDRAULIC TEST |
(a) Refer to Hydraulic Test.
Click here
| NG | | GO TO STEP 17 |
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| 14. | MANUAL SHIFTING TEST |
(a) Refer to Manual Shifting Test.
Click here
| NG | | GO TO STEP 16 |
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| 15. | PROBLEM SYMPTOMS TABLE CHAPTER 1 |
(a) Refer to Problem Symptoms Table.
Click here
| NG | | GO TO STEP 21 |
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| 16. | PROBLEM SYMPTOMS TABLE CHAPTER 2 |
(a) Refer to Problem Symptoms Table.
Click here
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| 17. | COMPONENT INSPECTION |
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| 18. | REPAIR OR REPLACE |
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| 19. | CONFIRMATION TEST |
| NEXT | | END |
| 20. | DTC CHART |
(a) Refer to Diagnostic Trouble Code Chart.
Click here
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| 21. | CIRCUIT INSPECTION |
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| 22. | IDENTIFICATION INFORMATION |
| NEXT | | GO TO STEP 18 |
READ NEXT:
Hydraulic Test
HYDRAULIC TEST PERFORM HYDRAULIC TEST CAUTION:
Do not perform a stall test if there are any people or objects near the vehicle.
The vehicle could begin moving suddenly, resulting in a serious ac
Initialization
INITIALIZATION RESET TRANSAXLE COMPENSATION CODE NOTICE:
If the following parts have been replaced, initialize the ECM, perform Reset Memory and Perform Road Test to Allow ECM to Learn.
ECM (Whe
Manual Shifting Test
MANUAL SHIFTING TEST MANUAL SHIFTING TEST HINT:
Using this test, it can be determined whether a problem is in an electrical circuit or if it is a mechanical problem in the transaxle.
If any abnor
SEE MORE:
MIL Circuit
DESCRIPTION The Malfunction Indicator Lamp (MIL) is used to indicate vehicle malfunctions detected by the ECM. The MIL operation can be checked visually. When the engine switch is first turned on (IG), the MIL should be illuminated and should then turn off after the engine is started. If the MIL rem
EV drive mode
In EV drive mode, electric power is
supplied by the hybrid battery
(traction battery), and only the
electric motor (traction motor) is
used to drive the vehicle.
This mode allows you to drive in residential
areas early in the morning
and late at night, or in indoor parking
lots etc. withou
